Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 4:40:42 AM (PDT) on Thursday, July 22, 2021.
The magnitude 1.2 event occurred 6 km (4 miles) WSW of Holtville, CA.
The hypocentral depth is 9 km ( 5 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Thursday, July 22, 2021 at 4:40:42 AM (PDT)
Thursday, July 22, 2021 at 11:40:42 (UTC)
Distance from Holtville, CA - 6 km (4 miles) WSW (248 degrees)
Heber, CA - 10 km (6 miles) NE (51 degrees)
El Centro, CA - 11 km (7 miles) E (89 degrees)
Imperial, CA - 13 km (8 miles) ESE (119 degrees)
Calexico, CA - 13 km (8 miles) NNE (23 degrees)
Coordinates 32 deg. 47.4 min. N (32.789N), 115 deg. 26.6 min. W (115.444W)
Depth 8.63 km (5.4 miles)
Quality Good
Location Quality Parameters Nst=13, Nph=21, Dmin=1.8 km, Rmss=0.26 sec, Erho=0.71 km, Erzz=0.82 km, Gp=135 degrees
Event ID# ci39749431
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